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UID:0-753@lptms.universite-paris-saclay.fr
DTSTART;TZID=Europe/Paris:20201215T110000
DTEND;TZID=Europe/Paris:20201215T120000
DTSTAMP:20210106T133342Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/seminaire-du-lptm
 s-ilya-galanov-2/
SUMMARY:Séminaire du LPTMS : Ilya Galanov - Grand amphi\, bâtiment Pascal
  n° 530 - 15 Déc 20 11:00
DESCRIPTION:On Self-Assembly of Aperiodic Tilings\nIlya Galanov (Laboratoir
 e d’Informatique de Paris Nord - Université Paris 13)\n\nOnline seminar
  --- ZOOM Meeting ID: 956 4238 1538 --- Password: Ask L. Mazza and D. Petr
 ov\n\n\nSelf-assembly is the process in which the components of a system\,
  whether molecules\, polymers\, or macroscopic particles\, are organized i
 nto ordered structures as a result of local interactions between the compo
 nents themselves\, without exterior guidance. This talk is devoted to the 
 self-assembly of aperiodic tilings. Aperiodic tilings serve as a mathemati
 cal model for quasicrystals - crystals that do not have any translational 
 symmetry. Because of the specific atomic arrangement of these crystals\, t
 he question of how they grow still remains open. Our aim is to develop a g
 rowth algorithm for a particular class of aperiodic tilings - octagonal ti
 lings of finite type. In order to mimic the growth of real-world quasicrys
 tals\, we demand the algorithm be local: the tiles must be added one by on
 e\, using only the local information\, and no data must be stored between 
 the steps. Simulations strongly support the evidence that this algorithm g
 rows aperiodic tilings\, up to an unavoidable but neglectable proportion o
 f missing tiles.
CATEGORIES:seminars
LOCATION:Grand amphi\, bâtiment Pascal n° 530\, rue André Rivière\, Ors
 ay\, 91405\, France
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=rue André Rivière\, Orsay
 \, 91405\, France;X-APPLE-RADIUS=100;X-TITLE=Grand amphi\, bâtiment Pasca
 l n° 530:geo:0,0
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DTSTART:20201025T020000
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